Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 8 de 8
Filter
Add more filters










Publication year range
1.
Mol Genet Metab Rep ; 38: 101060, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38469103

ABSTRACT

Introduction: Late infantile neuronal ceroid lipofuscinosis type 2 (CLN2), is a neurodegenerative autosomal recessive disease caused by TPP1 gene variants, with a spectrum of classic and atypical phenotypes. The aim of treatment is to slow functional decline as early as possible in an attempt to improve quality of life and survival. This study describes the clinical characteristics as well as the response to treatment with cerliponase alfa. Materials and methods: A retrospective study was conducted in five Latin-American countries, using clinical records from patients with CLN2. Clinical follow-up and treatment variables are described. A descriptive and bivariate statistical analysis was performed. Results: A total of 36 patients were observed (range of follow-up of 61-110 weeks post-treatment). At presentation, patients with the classic phenotype (n = 16) exhibited regression in language (90%), while seizures were the predominant symptom (87%) in patients with the atypical phenotype (n = 20). Median age of symptom onset and time to first specialized consultation was 3 (classical) and 7 (atypical) years, while the median time interval between onset of symptoms and treatment initiation was 4 years (classical) and 7.5 (atypical). The most frequent variant was c.827 A > T in 17/72 alleles, followed by c.622C > T in 6/72 alleles. All patients were treated with cerliponase alfa, and either remained functionally stable or had a loss of 1 point on the CLN2 scale, or up to 2 points on the Wells Cornel and Hamburg scales, when compared to pretreatment values. Discussion and conclusion: This study reports the largest number of patients with CLN2 currently on treatment with cerliponase alfa in the world. Data show a higher frequency of patients with atypical phenotypes and a high allelic proportion of intron variants in our region. There was evidence of long intervals until first specialized consultation, diagnosis, and enzyme replacement therapy. Follow-up after the initiation of cerliponase alfa showed slower progression or stabilization of the disease, associated with adequate clinical outcomes and stable functional scores. These improvements were consistent in both clinical phenotypes.

2.
Rev. colomb. radiol ; 33(1): 5708-5710, mar. 2022. imag
Article in English, Spanish | LILACS, COLNAL | ID: biblio-1434235

ABSTRACT

L-2-hydroxyglutaric aciduria (AL2HG) is a rare autosomal recessive neurometabolic disorder. It is characterized by elevated of L-2-hydroxyglutarate and lysine in urine, cerebrospinal fluid and plasma. Patients usually have neurological manifestations including mild to moderate psychomotor developmental delay, cerebellar ataxia, macrocephaly and epilepsy. Magnetic resonance imaging (MRI) has shown abnormalities in the signal intensity of the subcortical cerebral white matter, putamen and dentate nucleus. This article reports a case to demonstrate the classically described imaging findings.


La aciduria L-2-hidroxiglutárica (AL2HG) es un raro trastorno neurometabólico de tipo autosómico recesivo. Se caracteriza por niveles elevados de L-2-hidroxiglutarato y lisina en orina, líquido cefalorraquídeo y plasma. Los pacientes suelen tener manifestaciones neurológicas que incluyen retraso en el desarrollo psicomotor de leve a moderado, ataxia cerebelosa, macrocefalia y epilepsia. En resonancia magnética (RM) se han descrito anormalidades en la intensidad de señal de la sustancia blanca cerebral subcortical, el putamen y el núcleo dentado. En este artículo se presenta un caso para demostrar los hallazgos por imagen que se describen clásicamente.


Subject(s)
Magnetic Resonance Imaging , Pediatrics , Brain , Brain Diseases, Metabolic , Rare Diseases , Neurology
3.
Int J Psychol Res (Medellin) ; 14(1): 115-120, 2021.
Article in English | MEDLINE | ID: mdl-34306584

ABSTRACT

The objective of the present study was to make a clinical and electroencephalographic characterization of the electrical findings and types of seizures in patients with idiopathic autism. Pediatric patients of any age, with the diagnosis of idiopathic ASD, contained within the database of the research "Genetic in autism" were included. An electroencephalographic recording with epilepsy protocol was performed in all the patients. 20 pediatric patients were included with an age media of 10.5 years, SD 5.48 years. The median age for the diagnosis of ASD was 53 months, and epileptic seizures were documented in 45%. 66.6% of patients with epileptic events had anti-epileptic treatment, and only 33.3% had achieved seizure control with medication. Interictal abnormal EEG records were found in 8 patients (40%), with 6 of them having epileptic seizures. The abnormal EEG activity was multifocal in 62.5%, focal in 25% and generalized in 12.5% of the cases. The most frequently compromised location was the temporal lobe.


El objetivo del presente estudio fue caracterizar desde el punto de vista clínico y electroencefalográfico los hallazgos eléctricos y los tipos de crisis en pacientes con autismo idiopático. Se incluyeron pacientes de cualquier edad, con diagnóstico de TEA idiopático y pertenecientes a la base de datos de la investigación "Genética del Autismo". A todos los pacientes se les realizó electroencefalograma de rutina (EEG) con protocolo de epilepsia. Se recolectaron 20 pacientes en edad pediátrica con edad media de 10.5 años, DE de 5.84 años. Para la edad de diagnóstico del TEA, la media era de 53 meses. Se documentaron crisis epilépticas en 45% de los pacientes. De todos los pacientes con crisis, 66.6% tenían tratamiento con medicamentos antiepilépticos, y solo 33.3% habían logrado control de las crisis con el tratamiento. El EEG interictal fue anormal en 8 pacientes (40%), de los cuales 6 tenían crisis epilépticas. La actividad anormal fue multifocal en 62.5% de los pacientes, focal en 25% y generalizada en 12.5% de los casos. La localización más frecuente de las anomalías fue en el lóbulo temporal.

4.
Acta neurol. colomb ; 35(3)set. 2019.
Article in Spanish | LILACS | ID: biblio-1533480

ABSTRACT

INTRODUCCIÓN: Los errores innatos del metabolismo (EIM) son un grupo de enfermedades de origen genético, que entre el 40 % y el 60 % pueden manifestar crisis convulsivas. OBJETIVO: En este estudio se establecieron las características clínicas y electroencefalográficas en una muestra de 20 niños con diagnóstico de EIM y epilepsia. MATERIALES Y METODOS: La metodología utilizada fue un estudio descriptivo de series de casos retrospectivo. RESULTADOS: El 65 % de los pacientes de la muestra eran niños, el EIM de moléculas pequeñas fue el más frecuente (70 %). En cuanto a las variables clínicas, 90 % tenían encefalopatía, 75 % epilepsia refractaria y 55 °% crisis generalizadas. En electroencefalografía (EEG), 90 % de los pacientes tenían ritmo de fondo anormal, 80 % grafoelementos del sueño mal estructurados, 36 % de los afectados por EIM de moléculas pequeñas tenían patrón EEG multifocal y 100 % de los pacientes con déficit de producción de energía tuvieron patrón EEG focal. CONCLUSION: El tipo de EIM más frecuente en el estudio fue de moléculas pequeñas, con grados variables de encefalopatía y epilepsia refractaria. La anormalidad electroencefalográfica más frecuente fue el ritmo de fondo anormal debido a grafoelementos de sueño mal estructurados, en tanto que el patrón eléctrico fue dependiente de la edad y el tipo de EIM.


SUMMARY INTRODUCTION: Inborn errors of metabolism (IEM) are a group of diseases of genetic origin and they may manifest with seizures at some point of their evolution such as 40 to 60 percent of cases. SUBJECT: In this study, the clinical and electroencephalographic characteristics were established in a sample of 20 children diagnosed with IEM and epilepsy. METHODS: The methodology was a descriptive way of retrospective case series. RESULTS: The group was constituted 65 % by males. The EIM of small molecules was the most frequent (70 %). Regarding the clinical variables, 90 % had encephalopathy, 75 % refractory epilepsy and 55 % generalized epilepsy. About the electroencephalographic facts, 90 % had an abnormal basal activity, 80 % poorly structured sleep elements. The most frequent electroencephalographic pattern in small molecules disease's patients was multifocal (36 %) but in deficit of energy production's patients was focal (100 %). CONCLUSION: The type of IEM that predominated in this study was small molecules, with varying degrees of encephalopathy and refractory epilepsy. The most frequent electroencephalographic variable was abnormal background rhythm, with poorly structured sleep graphoelements. The electroencephalographic pattern depends on the age and type of IEM.


Subject(s)
Epilepsy , Metabolism, Inborn Errors , Neurologic Manifestations , Brain Diseases , Hyperglycinemia, Nonketotic , Electroencephalography
5.
Rev Neurol ; 54(10): 601-8, 2012 May 16.
Article in Spanish | MEDLINE | ID: mdl-22573507

ABSTRACT

INTRODUCTION: Ulegyria is a cortical lesion affecting neighbouring vascular zones, which gives the convolutions a mushroom-like appearance. It is an important cause of occipital epilepsy. AIM. To correlate patients diagnosed clinically, electrically and morphometrically with ulegyria and epilepsy by comparing the thickness of the cortex in the zones affected by ulegyria with the normal cortical thickness reported in the literature and the average cortical thickness of healthy subjects. PATIENTS AND METHODS: Ten patients with ulegyria confirmed by magnetic resonance imaging were included in the study; all of them were submitted to a clinical interview, an electroencephalographic study and cortical morphometric analysis based on volumetric T1 sequences. RESULTS: Findings included a predominance in males, neurodevelopmental retardation and epilepsy. Ulegyria was mainly parietooccipital, frequently bilateral, with statistically significant thinning of the cortical thickness in the site of the lesion and an increase in the thickness of the cortex in the areas surrounding the lesion. CONCLUSIONS: We report on a series of patients with ulegyria with characteristics similar to those existing in the literature and by means of morphometry we detected an increase in the thickness of the cortex around the areas affected by ulegyria. These findings could point to the presence of adaptive neuroplasticity in the neurons that surround the scar tissue or they may be the result of mechanical changes of normal tissue in response to the loss of volume of the ulegyria-affected area, although these data need to be replicated in a study with a greater number of patients.


Subject(s)
Cerebral Cortex/abnormalities , Cerebral Cortex/pathology , Electroencephalography , Epilepsy/diagnosis , Magnetic Resonance Imaging , Adolescent , Adult , Child , Child, Preschool , Epilepsy/pathology , Female , Humans , Male , Middle Aged , Young Adult
6.
Rev. neurol. (Ed. impr.) ; 54(10): 601-608, 16 mayo, 2012. tab, ilus
Article in Spanish | IBECS | ID: ibc-100066

ABSTRACT

Introducción. La ulegiria es una lesión cortical propia de zonas vasculares limítrofe, que da a las circunvoluciones unaspecto de hongo. Es una causa importante de epilepsia occipital. Objetivo. Correlacionar clínica, eléctrica y morfométricamente a los pacientes con diagnóstico de ulegiria y epilepsia comparando el espesor cortical de las zonas ulegíricas con el espesor cortical normal comunicado en la bibliografía y el promediodel espesor cortical de sujetos sanos.Pacientes y métodos. Se incluyeron diez pacientes con ulegiria comprobada imaginológicamente con resonancia magnética,los cuales se sometieron a una entrevista clínica, un estudio electroencefalográfico y un análisis morfométrico cortical a partir de secuencias T1 volumétricas. Resultados. Encontramos un predominio del sexo masculino, retraso en el neurodesarrollo y epilepsia. La ulegiria fueen su mayoría parietooccipital, frecuentemente bilateral, con adelgazamiento del espesor cortical en el sitio de la lesiónsignificativamente estadístico y aumento del grosor de la corteza en las zonas periféricas a la lesión.Conclusión. Describimos una serie de pacientes con ulegiria con características similares a las existentes en la bibliografíay detectamos en morfometría un aumento en el espesor cortical que rodea las zonas ulegíricas. Estos hallazgos podrían indicar bien la presencia de neuroplasticidad adaptativa en las neuronas que rodean el tejido cicatricial o el resultado de cambios mecánicos del tejido normal en respuesta a la pérdida de volumen de la zona ulegírica, datos que se deben replicaren un estudio con un mayor número de pacientes (AU)


Introduction. Ulegyria is a cortical lesion affecting neighbouring vascular zones, which gives the convolutions a mushroomlikeappearance. It is an important cause of occipital epilepsy. Aim. To correlate patients diagnosed clinically, electrically and morphometrically with ulegyria and epilepsy by comparing the thickness of the cortex in the zones affected by ulegyria with the normal cortical thickness reported in the literatureand the average cortical thickness of healthy subjects. Patients and methods. Ten patients with ulegyria confirmed by magnetic resonance imaging were included in the study;all of them were submitted to a clinical interview, an electroencephalographic study and cortical morphometric analysisbased on volumetric T1 sequences.Results. Findings included a predominance in males, neurodevelopmental retardation and epilepsy. Ulegyria was mainlyparietooccipital, frequently bilateral, with statistically significant thinning of the cortical thickness in the site of the lesion and an increase in the thickness of the cortex in the areas surrounding the lesion. Conclusions. We report on a series of patients with ulegyria with characteristics similar to those existing in the literature and by means of morphometry we detected an increase in the thickness of the cortex around the areas affected byulegyria. These findings could point to the presence of adaptive neuroplasticity in the neurons that surround the scar tissue or they may be the result of mechanical changes of normal tissue in response to the loss of volume of the legyriaaffectedarea, although these data need to be replicated in a study with a greater number of patients (AU)


Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Young Adult , Adult , Epilepsy/diagnosis , Cerebral Cortex/injuries , Occipital Lobe/injuries , Electroencephalography , Neuronal Plasticity/physiology , Intellectual Disability/physiopathology , Pregnancy, Prolonged , Organ Size , Gyrus Cinguli/injuries
7.
Iatreia ; 23(3): 227-239, sept. 2010. tab
Article in Spanish | LILACS | ID: lil-600257

ABSTRACT

Introducción: la tuberculosis (TB) es una de las enfermedades infectocontagiosas más importantes en el mundo debido a que se asocia con altas tasas de morbilidad y mortalidad. En niños puede afectar cualquier órgano o sistema, a cualquier edad, pero con mayor frecuencia es pulmonar. Tiene graves consecuencias si no se la diagnostica y trata de forma oportuna y adecuada. Los síntomas y signos son variados e inespecíficos lo que, sumado a la dificultad en el aislamiento del Mycobacterium tuberculosis a partir de muestras de niños disminuye la probabilidad de hacer el diagnóstico. Objetivo: puntualizar las características clínicas y sociodemográficas de un grupo de niños con sospecha o diagnóstico final de tuberculosis pulmonar. Metodología: la población en estudio correspondió a 56 niños menores de 13 años atendidos en los servicios pediátricos de urgencias y hospitalización del Hospital Universitario San Vicente de Paúl, en Medellín, a quienes se les sospechó o confirmó TB pulmonar, según los criterios de la OMS, entre julio de 2007 y diciembre de 2008. Se aplicó un formulario para la recolección de los datos, que se obtuvieron directamente de los pacientes o sus acudientes, y se completaron con las historias clínicas en el archivo del hospital. Resultados: en 38 de los 56 niños (67,9%) se confirmó el diagnóstico de tuberculosis pulmonar. El 87,5% pertenecían a los estratos socioeconómicos más bajos (1 y 2); 55% provenían del área urbana de Medellín, 70% eran mestizos y 28,6%, indígenas. La tos y la fiebre fueron las manifestaciones más comunes en el grupo con diagnóstico definitivo de TB; el criterio epidemiológico fue positivo en 53,6% de los casos, el radiológico en 51,8% y el tuberculínico, en 41,1%. Conclusión: la TB pulmonar sigue presente en la población infantil y se debe tener un alto índice de sospecha clínica para detectarla, pues las manifestaciones son variadas e inespecíficas...


Introduction: Worldwide, tuberculosis is one of the most important infectious and contagious diseases. It is associated with high morbidity and mortality rates. In children, tuberculosis is most frequently pulmonary but it may affect every organ and system. Its consequences, if inadequately treated, may be severe. Symptoms and signs are diverse and nonspecific, and the bacteriological confirmation is difficult in children. For these reasons, making the diagnosis in the pediatric population may be a really difficult challenge.Objective: To determine the sociodemographic and clinical characteristics of a group of children with suspicion or confirmed diagnosis of pulmonary tuberculosis.Methodology: Fifty six children were studied at Hospital Universitario San Vicente de Paúl, in Medellín, Colombia, between July 2007 and December 2008. Pulmonarytuberculosis was confirmed according to the WHO criteria. Information was obtained from the patients themselves, their parents, and the hospital files. Results: In 38 of the 56 children (67.9%) pulmonary tuberculosis was confirmed. Their socioeconomic situation was poor in 87.5% of the cases; 55% came from the urban area of the city; 70% were mestizo, and 26.8%, Indians. Cough and fever were the predominant clinical manifestations. The positivity rate of diagnostic criteria was as follows: 53.6% for the epidemiological, 51.6% for the radiological, and 41.1% for the tuberculin test. Conclusion: Pulmonary tuberculosis continues to be of great importance in the pediatric population...


Subject(s)
Female , Child , Diagnosis , Mycobacterium tuberculosis , Chemoprevention , Tuberculosis, Pulmonary , Tuberculosis, Pulmonary/classification , Colombia
8.
Rev. colomb. cardiol ; 16(5): 224-228, sept.-oct. 2009.
Article in Spanish | LILACS | ID: lil-548864

ABSTRACT

Los rabdomiomas cardiacos son tumores benignos dependientes de las fibras musculares miocárdicas, los cuales usualmente son múltiples, pero tienden a disminuir tanto en número como en tamaño con el crecimiento, con una regresión espontánea en 90% de los casos. Hacen parte de los tumores cardiacos primarios, los cuales son poco frecuentes, con una incidencia que varía entre 0,0017% y 0,28%. El más frecuente de los tumores cardiacos primarios es el rabdomioma. Se describe asociación con esclerosis tuberosa hasta en 72% de los casos, razón por la cual ésta debe buscarse ante el hallazgo de rabdomioma cardiaco.


Cardiac rhabdomyomas are benign tumors derived from cardiac muscle fibers. They are usually multiple, but tend to decrease both in number and size with growth, with spontaneous regression in 90% of cases. These lesions are part of the primary cardiac tumors, which are uncommon, and have a variable incidence between 0.0017 and 0.28%. The most common primary cardiac tumor is the rhabdomyoma. An association between rhabdomyoma and tuberous sclerosis has been described in up to 72% of cases. For this reason, a patient with cardiac rhabdomyoma should be investigated for tuberous sclerosis.


Subject(s)
Echocardiography , Rhabdomyoma , Tuberous Sclerosis
SELECTION OF CITATIONS
SEARCH DETAIL
...